Home / 3,518.40-5,266.26-1,870.86

Finding the Fourth Proportional to 3,518.40, 5,266.26 and 1,870.86

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Solution

The fourth proportional to 3,518.40, 5,266.26 and 1,870.86 is: 2,800.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.40 : 5,266.26 = 1,870.86 : x
  2. Step 2: Convert to fraction form
    3,518.40/5,266.26 = 1,870.86/x
  3. Step 3: Cross multiply
    3,518.40x = 5,266.26 × 1,870.86
  4. Step 4: Simplify right side
    3,518.40x = 9,852,435.18
  5. Step 5: Solve for x
    x = 9,852,435.18/3,518.40
  6. Step 6: Final answer
    x = 2,800.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.